London Underground deploys UV light escalator sanitisers
https://www.railwaygazette.com/metros/london-underground-deploys-uv-light-escalator-sanitisers/57663.article
When it comes to going up or down by escalators, it's more dangerous to avoid holding handrails than being infected with the virus. So, I think the behavior of passengers itself is wrong. But, it would be difficult for railway companies to enlighten them.
